Figure 4

Surgical diagram, preoperative MRI and intraoperative photos. (A) Two inner row anchors (Blue arrow) were screwed into the cartilage edge of the humeral head. (B) Reduction of torn rotator cuff tendon. (C) Two outer row anchors (Red arrow) were screwed into the 1.5 cm below the outer edge of the greater tuberosity of the humerus. (D) Preoperative MRI oblique coronal view, the yellow arrow is a ruptured supraspinatus tendon. (E) Subacromial space was explored arthroscopically to deal with acromial impingement, and the green arrow is the polished acromion. (F) The ruptured supraspinatus tendon was observed in the subacromial space (Yellow arrow). (G) The rotator cuff tear was repaired by double-row suture technique (Red arrow: the site of outer row anchor; Blue arrow: the site of inner row anchor). (H) The oblique coronal MRI of shoulder joint 6 months after surgery showed good healing of tendon bone (White arrow).